Classical Chinese educational toys: The nine-linked intellectual buckle is a traditional Chinese folk intellectual toy. It is still a favorite educational toy of Chinese people. It has a good effect on relieving stress and improving intelligence.Nine Links are connected by nine rings to form a string, and win by untie. When playing, repeat the operation according to a certain procedure, and the 9 rings can be unlocked separately or combined into one.Intellectual unraveling belongs to the scope of mathematics logic. You must think and study the law of discovering the nine links before you can completely untie them and combine them into one, so it is very helpful for the development of logical thinking.This set includes a 25-piece set. In addition to the nine-links, there are other small unbuttoning toys. This is a great party entertainment activity and can also be used for parent-child interaction activities. Who is the first to untie the game, get the score, and give the failure Punish.